An 8-channel relay module for controlling high-power devices from Arduino, Raspberry Pi, and other microcontrollers. Each relay has both normally open (NO) and normally closed (NC) terminals, with individual status LEDs showing relay state at a glance. Key Features 8 Independent Channels – Control up to 8 devices separately NO and NC Terminals – Both connection types available per relay Status LEDs – Visual indication for each relay 5V Logic – Direct connection to most microcontrollers Mechanical Relays – Suitable for AC and DC loads Specifications Channels – 8 Operating Voltage – 5V DC Relay Type – Mechanical Outputs per Channel – NO, NC, COM Compatibility Arduino Raspberry Pi (with level shifting for 3.3V models) AVR, PIC, ARM, MSP430 microcontrollers Ideal For Home automation systems Appliance control Lighting control Motor switching Industrial applications Warning: When switching mains voltage, ensure proper electrical safety precautions. High voltage work should only be performed by qualified individuals.